Recycled pulsars are mainly characterized by their spin periods, B-fields and
masses. All these quantities are affected by previous interactions with a
companion star in a binary system. Therefore, we can use these quantities as
fossil records and learn about binary evolution. Here, I briefly review the
distribution of these observed quantities and summarize our current
understanding of the pulsar recycling process.Comment: Brief summary of invited review talk @ MODEST-16. 4 pages, 3 figures.
To appear in: "Cosmic-Lab: Star Clusters as Cosmic Laboratories for
Astrophysics, Dynamics and Fundamental Physics", F.R Ferraro & B. Lanzoni
eds, Mem. SAIt, Vol 87, n.